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Check for Update button not connecting


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I have a very old version of Nitro PDF pro - and have attempted to update it. when clicking on the "Check for Update" button, a pop-up appears with the message; "There was a problem connecting to Update Service."  I have internet connection, so the obvious issue is not relevant.  The primary reason for updating is my version has suddenly started to crash every time I attempt to open a document.  I don't wish or need to buy the latest version, so any advice as to how best fix this issue?




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Kelvin B. Villarin

Hi @PeterReed,

Thanks for posting on our Community Forums!

I need  to let you know that we no longer support that version. It has been discontinued as documented in our Sunset Policy: https://www.gonitro.com/support/sunset-policy#sunsetPolicy 

Since you prefer using Nitro Pro 6, I highly suggest doing a fresh install of Nitro Pro 6 and make sure there are no corrupt files. Here are the steps:

Kindly use this MS FixIt tool to remove all traces of Nitro Pro:


Reboot. When your system is back up, close all of your open applications and install the latest build of Nitro Pro 6 using the link I have provided below:


After installation, you can activate by opening Nitro, clicking on the Help tab > About Nitro Pro > Activation and enter your serial number

I hope this helps.


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